Self-discharger



Jan, 9, 1923.,

P. KRUGER.

SELF DISCHARGER.

mm OCT. 14, 1921.

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Application filed October 1%, rear. herial lilo. Elll'hll'il l.

To all a hOf/"b it may concern:

Be it known that 1, PAUL Kniienn, residing at Essen, Germany, a citizen of the German Republic, have invented a certain new and useful Improvement in dwelt-Dischargers, oi which the following is a specification.

The present invention relates to selt-dischargers with a bottom which can be tilted towards both sides, overcoming the action ot a spring in the operation; and the object of the invention is to simplify thisconstruction of selt-discharger. i i

The invention will be described with reference to the accompanying drawings which show an example of the invention as applied to a self-discharger.

Figurel is a schematic view of a transverse section through the receptacle when in the leading position.

Figure 2 is a section of the receptacle corresponding to lligure 1 after discharge has taken place to one side; and

Figure 3 is a section of the receptacle corresponding to Figure 1 after discharge has taken place to the other side.

On the under'frame A of the receptacle, such as a car or the like, are rigidly mounted parallel with each other the two end waLs it There are also mounted on the under frame A at the front and rear ends of the receptacle, two hearing brackets A each of which lies symmetrical with the central longitudinal plane of the receptacle. These hearing brackets are provided for the reception of two shafts l3 running right through and on which are mounted in pairs, oppositely situated crank arms 6 These cranks '6 are connected to the bottom C of the re ceptacle by a connecting rod D in each case. Un the under frame A are also provided stops a which, when the crank arms bear against them, permit the latter to rotate in an inward direction only. U11 the bottom of the receptacle are provided stops c for the connecting rods D which likewise permit the latter to rotate in an inward direction only. Operating levers H connected to the shafts B are provided for rotating the said shafts to initiate the tilting movement of the bot tom U Each of the two side walls of the receptacle F is provided on its lower edge with hearings f which are open underneath and which when the receptacle is ready to be loaded engage with pins 0 on the bottom G and rests atits upper t a on the end walls A? (see higur es 2 and o m v' i o). ihe side walls ii are guided by connecting rods (-lwhich are mounted on the end walls A i lthe crank arms 5 are prolonged by a piece 6 beyond their of rotation and connected in pairs witheach other by a coiled spring E which is attached to the prolonged parts Z3 and mac the action oil? which spring the crank arias bear against the stops When the receptacle is to he discharged. to one Side e. towards the right (see Fig ure the crank arms Z3 situated on the right hand side of the central longitudinal plane are turned inwards slightly by rotating the appurtena. t shalt ll by means oi the operating lever ill in the direction of the arrow Under the action of the weight oil the material contained in the receptacle the bottom then tilts automatically towards the right, turning oh the hinges which connect the crank arms Z3 situated on the left and re maining rest with the connecting rods D belonging thereto and hearing against the stops 0 and therefore moving with the bottom.

By the tilting oil" the bottom the springs lE lying hetween the prolonged parts 5 o l the crank arms t are stretched to the right so that a portion of the mechanical. work which is released when the bottom moves over into the discharge position, is stored up in them. Un the return of the bottom C to the loading position the crank arms 6 lying on the right hand side of the central longitudinal plane of the receptacle are rotated hack into their original position in the opposite direction to that indicated by the arrow :29. The result of this movement oi the crank arms is, that the bottom C of the selzt-discharger is also rotated hack into its original position, by which operation an amount of work which is dependent on the ratios of weight of the movable parts particularly the bottom, has to he done. in this return movement to the loading position spring-sill contract and give up again the mechanical work stored up therein, so that only a small expenditure of :torce is necessary for the operation of the crank arms b which is effected by hand.

The discharge oi the receotaele tor .rds the left (see Figure 3) requires no special.

the

are in openheariiu gs 7 I trary of a single spring explanation, as. the operations correspond exactly to those which take place on'the dis charge of the receptacle to the right. It need only be mentioned that in this case (conto the first one) the crank arms on'the right remain at rest and the coiled springs E are stretched towards the left.

It is naturally not important to the present invention that the members which are connected in pairs by a coiled spring E should be constituted by crank arms (6 b Theonly important be two members which (in the well known way) are so movable relatively to each other both on'the tilting movement of the bottom towards one side as well as the other, that thedist-ance between two points of these members always alters in thesame direction and that therefore a spring attached at these two points will always have the strain put upon it in the same manner i. e. it will always be either compressed or stretched.

This secures the advantage that by means the same advantage can now be secured as was formerly obtained with two springs which constitutes a considerable simplification of the construction.

I claim 1. In a self-discharging receptacle provided with a bottom tiltable towards both point is, that they positive dependence on the movement of the i bottom and a coiled spring interposed between said members and connected to the said ends thereof and tensioned by the mutual movement of the said members.

3. In a self-discharging receptacle vided with a bottom. tiltable toward both sides, crank arms pivotally mounted on the underframe of the receptacle on both sides of the central longitudinal plane of the receptacle, connecting rods movable in one direction relatively to said bottom for connecting said crank arms to said bottom, extensions on said crank arms and a coiled spring connecting said extensions.

PAUL KRUGER.

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